CVE-2026-53740

MEDIUM 5.4

Yoast Duplicate Post through 4.6 Stored Cross-Site Scripting via Scheduled Republish Notice

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

Yoast Duplicate Post through 4.6 inserts an unescaped post title and permalink into the Classic Editor scheduled republish notice. Attackers can schedule a republish copy with a crafted title to execute script when an administrator views the resulting notice.

CWE	CWE-79
Vendor	yoast
Product	yoast duplicate post
Published	Jun 10, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Yoast / Yoast Duplicate Post

0 ≤ 4.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordpress.org: https://wordpress.org/plugins/duplicate-post/ vulncheck.com: https://www.vulncheck.com/advisories/yoast-duplicate-post-through-stored-cross-site-scripting-via-scheduled-republish-notice

Credits

Scott Moore - VulnCheck